C04_Attachment 5 Specifications.pdf

HVAC REPLACEMENT 095100 - 1 Acoustical Ceilings

SECTION 095100

ACOUSTICAL CEILINGS

PART 1 GENERAL

1.01 REFERENCE STANDARDS

A. ASTM C635/C635M - Standard Specification for Manufacture, Performance, and Testing of Metal Suspension Systems for Acoustical Tile and Lay-in Panel Ceilings; 2022.

B. ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials;

2026.

C. ASTM E119 - Standard Test Methods for Fire Tests of Building Construction and Materials;

2026.

D. ASTM E1264 - Standard Classification for Acoustical Ceiling Products; 2023.

PART 2 PRODUCTS

2.01 PERFORMANCE REQUIREMENTS

A. Fire-Resistance Rating: In accordance with test procedures in ASTM E119 and complying with the following:

B. Surface Burning Characteristics: Class A in accordance with ASTM E84.

2.02 ACOUSTICAL UNITS

A. Acoustical Units - General: ASTM E1264, Class A.

B. Acoustical Panels: Painted mineral fiber, with the following characteristics:

1. Classification: ASTM E1264 Type A.

2. Size: 24 by 24 inches (610 by 610 mm).

3. Thickness: 3/4 inch (19 mm).

4. Panel Edge: Square.

5. Color: White.

6. Suspension System: Exposed grid.

2.03 SUSPENSION SYSTEMS

A. Metal Suspension Systems - General: Complying with ASTM C635/C635M; die cut and interlocking components, with perimeter moldings, hold-down clips, stabilizer bars, clips, and splices as required.

B. Exposed Suspension System: Hot-dip galvanized steel grid with steel cap.

1. Structural Classification: Intermediate-duty, when tested in accordance with ASTM

C635/C635M.

2. Profile: Tee; 15/16 inch (24 mm) face width.

3. Finish: Baked enamel.

4. Color: White.

PART 3 EXECUTION

3.01 EXAMINATION

A. Verify existing conditions before starting work.

B. Verify that layout of hangers will not interfere with other work.

3.02 PREPARATION

A. Install after major above-ceiling work is complete.

B. Coordinate the location of hangers with other work.

3.03 INSTALLATION - SUSPENSION SYSTEM

A. Rigidly secure system, including integral mechanical and electrical components, for maximum deflection of 1:360.

HVAC REPLACEMENT 095100 - 2 Acoustical Ceilings

B. Suspension System, Non-Seismic: Hang suspension system independent of walls, columns, ducts, pipes and conduit. Where carrying members are spliced, avoid visible displacement of face plane of adjacent members.

C. Where ducts or other equipment prevent the regular spacing of hangers, reinforce the nearest affected hangers and related carrying channels to span the extra distance.

D. Do not support components on main runners or cross runners if weight causes total dead load to exceed deflection capability.

E. Support fixture loads using supplementary hangers located within 6 inches (152 mm) of each corner, or support components independently.

F. Do not eccentrically load system or induce rotation of runners.

3.04 INSTALLATION - ACOUSTICAL UNITS

A. Install acoustical units in accordance with manufacturer's instructions.

B. Fit acoustical units in place, free from damaged edges or other defects detrimental to appearance and function.

C. Fit border trim neatly against abutting surfaces.

D. Install acoustical units level, in uniform plane, and free from twist, warp, and dents.

E. Cutting Acoustical Units:

1. Make field cut edges of same profile as factory edges.

3.05 CLEANING

A. Clean surfaces.

B. Replace damaged or abraded components.

END OF SECTION 095100

HVAC REPLACEMENT 236100 - 3 Refrigerant Compressors

SECTION 236100

REFRIGERANT COMPRESSORS

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Scroll compressors.

B. Internal piping and accessories.

C. Controls and control panel.

D. Motor starters.

E. Electrical power connections.

1.02 RELATED REQUIREMENTS

A. Section 232300 - Refrigerant Piping.

B. Section 260583 - Wiring Connections: Electrical characteristics and wiring connections.

1.03 REFERENCE STANDARDS

A. AHRI 520 - Performance Rating of Positive Displacement Condensing Units; 2004.

B. ASHRAE Std 23 - Methods for Performance Testing Positive Displacement Refrigerant

Compressors and Compressor Units; 2022.

C. ASHRAE Std 90.1 I-P - Energy Standard for Buildings Except Low-Rise Residential Buildings;

Most Recent Edition Adopted by Authority Having Jurisdiction, Including All Applicable Amendments and Supplements.

D. UL (DIR) - Online Certifications Directory; Current Edition.

E. UL 207 - Standard for Refrigerant-Containing Components and Accessories, Nonelectrical;

Current Edition, Including All Revisions.

1.04 WARRANTY

A. See Section 017800 - Closeout Submittals, for additional warranty requirements.

B. Provide a five year warranty to include coverage for compressor.

PART 2 PRODUCTS

2.01 MANUFACTURERS

2.02 REGULATORY REQUIREMENTS

A. Comply with requirements of UL and applicable codes.

B. Products Requiring Electrical Connection: Listed and classified by UL (DIR) as suitable for the purpose specified and indicated.

2.03 MANUFACTURED UNITS

A. Compressor Units: Hermetic compressor and motor, with cylinder unloaders, crankcase heater, suction and discharge service valves, vibration isolators, and control panel.

B. Construction and Ratings: In accordance with AHRI 520 and UL 207. Testing in accordance with ASHRAE Std 23.

C. Performance Ratings: Energy Efficiency Rating (EER) and Coefficient of Performance (COP) not less than prescribed by ASHRAE Std 90.1.

D. Refrigerant: Use only refrigerants that have ozone depletion potential (ODP) of zero and global warming potential (GWP) no greater than that allowed by federal code.

2.04 HERMETIC COMPRESSORS

A. Scroll Compressors:

B. Performance:

HVAC REPLACEMENT 236100 - 4 Refrigerant Compressors

1. Capacity: 4.25 tons (14.9 kW)of refrigeration per compressor.

C. Electrical Characteristics:

1. 4 hp (2.9 kW).

2. 200-230V volts, three phase, 60 Hz.

PART 3 EXECUTION

3.01 INSTALLATION

A. Install in accordance with manufacturer's instructions.

B. Provide for connection to electrical service.

1. See Section 260583.

C. Provide connection to refrigerant piping. See Section 232300.

3.02 SYSTEM STARTUP

A. Supply initial charge of refrigerant and oil.

END OF SECTION 236100

HVAC REPLACEMENT 238126.13 - 5 Small-Capacity Split-System Air Conditioners

SECTION 238126.13

SMALL-CAPACITY SPLIT-SYSTEM AIR CONDITIONERS

PART 1 GENERAL

1.01 RELATED REQUIREMENTS

A. Section 260583 - Wiring Connections: Electrical characteristics and wiring connections and installation and wiring of thermostats and other controls components.

1.02 REFERENCE STANDARDS

A. AHRI 210/240 - Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump

Equipment; 2023.

B. AHRI 520 - Performance Rating of Positive Displacement Condensing Units; 2004.

C. ASHRAE Std 15 - Safety Standard for Refrigeration Systems; 2024, with Addendum (2026).

D. ASHRAE Std 23 - Methods for Performance Testing Positive Displacement Refrigerant

Compressors and Compressor Units; 2022.

E. NFPA 90A - Standard for the Installation of Air-Conditioning and Ventilating Systems; 2024.

F. NFPA 90B - Standard for the Installation of Warm Air Heating and Air-Conditioning Systems;

2024.

G. UL 207 - Standard for Refrigerant-Containing Components and Accessories, Nonelectrical;

Current Edition, Including All Revisions.

1.03 SUBMITTALS

A. See Section 013000 - Administrative Requirements, for submittal procedures.

B. Product Data: Provide rated capacities, weights, accessories, electrical nameplate data, and wiring diagrams.

C. Operation and Maintenance Data: Include manufacturer's descriptive literature, operating instructions, installation instructions, maintenance and repair data, and parts listing.

D. Warranty: Submit manufacturers warranty and ensure forms have been filled out in Owner's name and registered with manufacturer.

1.04 QUALITY ASSURANCE

A. Installer Qualifications: Company specializing in performing the work of this section with minimum 3 years of experience and approved by manufacturer.

1.05 WARRANTY

A. See Section 017800 - Closeout Submittals, for additional warranty requirements.

B. Provide five year manufacturers warranty for heat exchangers.

PART 2 PRODUCTS

2.01 SYSTEM DESIGN

A. Split-System Heating and Cooling Units: Self-contained, packaged, matched factory-engineered and assembled, pre-wired indoor and outdoor units; UL listed.

1. Heating and Cooling: Air-source electric heat pump located in outdoor unit with evaporator.

2. Provide refrigerant lines internal to units and between indoor and outdoor units, factory cleaned, dried, pressurized and sealed, with insulated suction line.

B. Performance Requirements: See Drawings for additional requirements.

1. Efficiency:

a. Seasonal Energy Efficiency Ratio: 16, minimum.

C. Electrical Characteristics:

1. Install per manufacturers specifications and in accordance with NEC .

HVAC REPLACEMENT 238126.13 - 6 Small-Capacity Split-System Air

2. Disconnect Switch: Factory mount disconnect switch on equipment under provisions of Section 260583.

2.02 INDOOR AIR HANDLING UNITS FOR DUCTLESS SYSTEMS

A. Indoor Units: Self-contained, packaged, factory assembled, pre-wired unit consisting of cabinet, supply fan, evaporator coil, and controls; wired for single power connection with control transformer.

1. Location: High-wall.

2. Filter return air with washable, antioxidant pre-filter and a pleated anti-allergy enzyme filter.

3. Wall-Mounted Units:

a. Heating Output: 18000 Btuh (5.28 kW).

b. Cooling Output: 18000 Btuh (5.28 kW).

B. Evaporator Coils: Copper tube aluminum fin assembly, galvanized or polymer drain pan sloped in all directions to drain, drain connection, refrigerant piping connections, restricted distributor or thermostatic expansion valve.

1. Construction and Ratings: In accordance with AHRI 210/240 and UL 207.

2. Manufacturer: System manufacturer.

2.03 OUTDOOR UNITS

A. Outdoor Units: Self-contained, packaged, pre-wired unit consisting of cabinet, with compressor and condenser.

1. Refrigerant: R-454B or R-32.

2. Construction and Ratings: In accordance with AHRI 210/240 with testing in accordance with ASHRAE Std 23 and UL 207.

B. Air Cooled Condenser: Aluminum fin and copper tube coil, AHRI 520 with direct drive axial propeller fan resiliently mounted, galvanized fan guard.

C. Accessories: Filter drier, high-pressure switch (manual reset), low pressure switch (automatic reset), service valves and gauge ports, thermometer well (in liquid line).

1. Provide thermostatic expansion valves.

D. Operating Controls:

1. Control by room thermostat to maintain room temperature setting.

E. Mounting Pad: Precast concrete parking bumpers, minimum 4 inches (100 mm) square;

minimum of two located under cabinet feet.

2.04 ACCESSORY EQUIPMENT

A. Economizer Damper Units: Steel cabinet with baked enamel finish, easily removed and secured access doors, glass fiber insulation.

1. Dampers: Formed steel with nylon bearings and gaskets.

2. Damper Operator: 24 volt, three position spring return motor with adjustable minimum position switch.

3. Control Wiring: Provide wiring harness consisting of control board with relays, wiring harness, transformer, and hardware.

4. Controls: Discharge air thermostat, adjustable outdoor air "enthalpy" control, return air

"enthalpy" sensor position dampers, and interface to room thermostat.

B. Room Thermostat: Wall-mounted, electric solid state microcomputer based room thermostat with remote sensor to maintain temperature setting; low-voltage; with following features:

1. Automatic switching from heating to cooling.

2. Preferential rate control to minimize overshoot and deviation from setpoint.

3. Thermostat Display:

a. Actual room temperature.

b. System Mode Indication: Heating, Cooling, Fan Auto, Off, and On, Auto or On, Off.

HVAC REPLACEMENT 238126.13 - 7 Small-Capacity Split-System Air

PART 3 EXECUTION

3.01 INSTALLATION

A. Install in accordance with manufacturer's instructions and requirements of local authorities having jurisdiction.

B. Install in accordance with NFPA 90A and NFPA 90B.

C. Install refrigeration systems in accordance with ASHRAE Std 15.

D. Pipe drain from cooling coils and humidifiers to nearest drain connection or route to exterior.

END OF SECTION 238126.13

HVAC REPLACEMENT 260505 - 8 Selective Demolition for Electrical

SECTION 260505

SELECTIVE DEMOLITION FOR ELECTRICAL

PART 1 GENERAL

1.01 SECTION INCLUDES

A. Electrical demolition.

1.02 RELATED REQUIREMENTS

PART 2 PRODUCTS

2.01 MATERIALS AND EQUIPMENT

A. Materials and equipment for patching and extending work: As specified in individual sections.

PART 3 EXECUTION

3.01 EXAMINATION

A. Verify that abandoned wiring and equipment serve only abandoned facilities.

B. Beginning of demolition means installer accepts existing conditions.

3.02 PREPARATION

A. Disconnect electrical systems in walls, floors, and ceilings to be removed.

B. Provide temporary wiring and connections to maintain existing systems in service during construction. When work must be performed on energized equipment or circuits, use personnel experienced in such operations.

C. Existing Electrical Service: Maintain existing system in service until new system is complete and ready for service. Disable system only to make switchovers and connections. Minimize outage duration.

3.03 DEMOLITION AND EXTENSION OF EXISTING ELECTRICAL WORK

A. Remove, relocate, and extend existing installations to accommodate new construction.

B. Remove abandoned wiring to source of supply.

C. Remove exposed abandoned conduit, including abandoned conduit above accessible ceiling finishes. Cut conduit flush with walls and floors, and patch surfaces.

D. Disconnect abandoned outlets and remove devices. Remove abandoned outlets if conduit servicing them is abandoned and removed. Provide blank cover for abandoned outlets that are not removed.

E. Repair adjacent construction and finishes damaged during demolition and extension work.

F. Maintain access to existing electrical installations that remain active. Modify installation or provide access panel as appropriate.

G. Extend existing installations using materials and methods compatible with existing electrical installations, or as specified.

3.04 CLEANING AND REPAIR

A. See Section 017419 - Construction Waste Management and Disposal for additional requirements.

B. Clean and repair existing materials and equipment that remain or that are to be reused.

END OF SECTION 260505